/* =============================================
   IN THANH TRUNG — PREMIUM WEBSITE v2.0
   Design System + Full Stylesheet
   ============================================= */

/* --- CSS Variables --- */
:root {
  --primary: #1B2A4A;
  --primary-light: #2a3f6b;
  --primary-dark: #0f1a30;
  --secondary: #C8963E;
  --secondary-light: #e0a84a;
  --secondary-dark: #a67a2e;
  --accent: #D4433B;
  --accent-light: #e85d56;
  --success: #22C55E;
  --info: #3B82F6;
  --bg: #FAFAF8;
  --bg-alt: #F0F0EC;
  --surface: #FFFFFF;
  --text: #2D2D2D;
  --text-light: #6B7280;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.15);
  --shadow-gold: 0 8px 32px rgba(200,150,62,.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --max-width: 1200px;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--secondary), var(--primary)); border-radius: 4px; }

/* --- Utilities --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); color: #fff; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--secondary); margin-bottom: 12px; justify-content: center; }
.section-tag::before { content: ''; width: 24px; height: 2px; background: var(--secondary); }
.section-title { font-family: var(--font-heading); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: var(--primary); line-height: 1.2; margin-bottom: 16px; }
.section-dark .section-title { color: #fff; }
.section-desc { font-size: 1.05rem; color: var(--text-light); max-width: 600px; margin: 0 auto; line-height: 1.7; }
.text-highlight { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-gradient { background: linear-gradient(135deg, var(--secondary), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem; transition: var(--transition); cursor: pointer; border: 2px solid transparent; white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); color: #fff; box-shadow: var(--shadow-gold); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(200,150,62,.35); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 10px 20px; font-size: .85rem; }
.btn-lg { padding: 16px 32px; font-size: 1rem; }

/* --- Scroll Reveal --- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* --- PRELOADER --- */
.preloader { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--primary-dark); z-index: 10000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; transition: opacity .5s; }
.preloader-logo { width: 80px; height: 80px; background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 900; font-size: 1.2rem; color: #fff; animation: pulse-loader 1.5s ease infinite; }
@keyframes pulse-loader { 0%,100% { transform: scale(1); } 50% { transform: scale(1.1); } }
.preloader-bar { width: 120px; height: 3px; background: rgba(255,255,255,.1); border-radius: 2px; overflow: hidden; }
.preloader-progress { height: 100%; background: linear-gradient(90deg, var(--secondary), var(--secondary-light)); border-radius: 2px; animation: loading 1.5s ease forwards; }
@keyframes loading { 0% { width: 0; } 100% { width: 100%; } }

/* --- TOP BAR --- */
.topbar { background: var(--primary-dark); padding: 8px 0; font-size: .78rem; color: rgba(255,255,255,.7); border-bottom: 1px solid rgba(255,255,255,.06); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; }
.topbar-left { display: flex; gap: 20px; align-items: center; }
.topbar-item { color: rgba(255,255,255,.7); transition: var(--transition); }
.topbar-item:hover { color: var(--secondary-light); }
.topbar-right { display: flex; gap: 12px; }
.topbar-social { color: rgba(255,255,255,.5); transition: var(--transition); display: flex; align-items: center; }
.topbar-social:hover { color: var(--secondary-light); }

/* --- HEADER --- */
.header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid transparent; transition: var(--transition); }
.header.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 900; font-size: .9rem; color: var(--secondary-light); overflow: hidden; }
.logo-img { width: 42px; height: 42px; object-fit: contain; display: block; }
.logo-name { font-family: var(--font-heading); font-weight: 800; font-size: 1.1rem; color: var(--primary); display: block; line-height: 1.2; }
.logo-tagline { font-size: .65rem; color: var(--text-muted); display: block; letter-spacing: .5px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 8px 16px; font-size: .88rem; font-weight: 500; color: var(--text-light); border-radius: var(--radius-sm); transition: var(--transition); display: flex; align-items: center; gap: 4px; }
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(27,42,74,.04); }
.nav-link.active { font-weight: 600; }
.nav-link svg { opacity: .5; }

/* --- Dropdown Menu --- */
.nav-dropdown { position: relative; }
.dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px); background: var(--surface); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: 12px; min-width: 280px; opacity: 0; visibility: hidden; transition: var(--transition); pointer-events: none; border: 1px solid var(--border-light); }
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: all; }
.dropdown-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: var(--radius-sm); transition: var(--transition); }
.dropdown-item:hover { background: var(--bg-alt); }
.dropdown-icon { width: 36px; height: 36px; flex-shrink: 0; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 10px; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.dropdown-icon svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.dropdown-item:hover .dropdown-icon { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); transform: scale(1.1); }
.dropdown-item strong { display: block; font-size: .85rem; color: var(--primary); }
.dropdown-item small { font-size: .75rem; color: var(--text-muted); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { font-size: .85rem; font-weight: 600; color: var(--accent); display: flex; align-items: center; gap: 6px; }
.header-cta-btn { display: inline-flex; }

/* --- Hamburger --- */
.hamburger { display: none; width: 32px; height: 24px; flex-direction: column; justify-content: space-between; z-index: 100; }
.hamburger span { display: block; width: 100%; height: 3px; background: var(--primary); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(7px, 7px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

/* --- Mobile Nav --- */
.mobile-nav { display: none; flex-direction: column; padding: 16px 24px 24px; background: var(--surface); border-top: 1px solid var(--border); }
.mobile-nav.open { display: flex; }
.mobile-link { padding: 12px 0; font-size: 1rem; font-weight: 500; color: var(--text); border-bottom: 1px solid var(--border-light); }

/* --- HERO --- */
.hero { position: relative; padding: 120px 0 100px; overflow: hidden; background: linear-gradient(135deg, #f8f7f5 0%, #e8e6e0 100%); min-height: 85vh; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(200,150,62,.08), transparent 70%), radial-gradient(ellipse at 20% 80%, rgba(27,42,74,.05), transparent 50%); }
.hero-particles { position: absolute; inset: 0; pointer-events: none; }
.particle { position: absolute; background: var(--secondary); border-radius: 50%; opacity: .15; animation: float-particle linear infinite; }
@keyframes float-particle { 0% { transform: translateY(0) rotate(0); opacity: .15; } 50% { opacity: .3; } 100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; } }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px; background: rgba(255,255,255,.8); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: 50px; font-size: .8rem; font-weight: 600; color: var(--primary); margin-bottom: 20px; }
.badge-dot { width: 8px; height: 8px; background: var(--success); border-radius: 50%; animation: pulse-dot 2s ease infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,.4); } 50% { opacity: .8; box-shadow: 0 0 0 8px rgba(34,197,94,0); } }
.hero-title { font-family: var(--font-heading); font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 900; color: var(--primary); line-height: 1.15; margin-bottom: 20px; }
.hero-desc { font-size: 1.1rem; color: var(--text-light); line-height: 1.7; margin-bottom: 32px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 32px; }
.hero-stat { text-align: center; }
.stat-num { font-family: var(--font-heading); font-size: 2rem; font-weight: 900; color: var(--secondary); }
.stat-label { font-size: .78rem; color: var(--text-muted); margin-top: 2px; }
.hero-visual { position: relative; }
.hero-img-wrap { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-xl); position: relative; }
.hero-img-wrap img { width: 100%; height: 400px; object-fit: cover; }
.hero-img-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(27,42,74,.1), transparent); }
.hero-float { position: absolute; background: var(--surface); border-radius: var(--radius-md); padding: 14px 18px; display: flex; align-items: center; gap: 12px; box-shadow: var(--shadow-lg); animation: float-card 3s ease-in-out infinite; }
.float-1 { bottom: -20px; left: -20px; animation-delay: 0s; }
.float-2 { top: 20px; right: -20px; animation-delay: 1.5s; }
@keyframes float-card { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.float-icon { width: 40px; height: 40px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: #fff; }
.float-val { font-family: var(--font-heading); font-weight: 800; font-size: 1.1rem; color: var(--primary); display: block; }
.float-label { font-size: .72rem; color: var(--text-muted); }

/* --- USP STRIP --- */
.usp-strip { padding: 0; margin-top: -40px; position: relative; z-index: 10; }
.usp-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.usp-item { display: flex; align-items: center; gap: 16px; padding: 28px 24px; border-right: 1px solid var(--border-light); transition: var(--transition); }
.usp-item:last-child { border-right: none; }
.usp-item:hover { background: linear-gradient(135deg, rgba(200,150,62,.04), transparent); }
.usp-icon { width: 48px; height: 48px; flex-shrink: 0; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 12px; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.usp-icon svg { width: 22px; height: 22px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.usp-item:hover .usp-icon { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); transform: scale(1.08); box-shadow: 0 4px 16px rgba(200,150,62,.3); }
.usp-value { font-family: var(--font-heading); font-weight: 800; font-size: 1.05rem; color: var(--primary); }
.usp-label { font-size: .78rem; color: var(--text-muted); }

/* --- SERVICES --- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card { background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border-light); transition: var(--transition); position: relative; overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--secondary), var(--secondary-light)); transform: scaleX(0); transition: var(--transition); transform-origin: left; z-index: 2; }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.service-card:hover::before { transform: scaleX(1); }
.service-img { position: relative; overflow: hidden; height: 200px; flex-shrink: 0; }
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.4,0,.2,1); }
.service-card:hover .service-img img { transform: scale(1.08); }
.service-img-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(27,42,74,.15) 100%); transition: var(--transition); }
.service-card:hover .service-img-overlay { background: linear-gradient(180deg, transparent 30%, rgba(27,42,74,.25) 100%); }
.service-badge-tag { position: absolute; top: 14px; left: 14px; padding: 5px 14px; background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); color: #fff; font-family: var(--font-heading); font-size: .68rem; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; border-radius: 20px; box-shadow: 0 3px 12px rgba(200,150,62,.35); z-index: 1; }
.service-body { padding: 24px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.service-title { font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; color: var(--primary); margin-bottom: 10px; }
.service-desc { font-size: .9rem; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; }
.service-machines { font-size: .75rem; color: var(--secondary); font-weight: 600; margin-bottom: 16px; padding: 8px 12px; background: rgba(200,150,62,.06); border-radius: var(--radius-sm); }
.service-link { font-size: .85rem; font-weight: 600; color: var(--secondary); transition: var(--transition); margin-top: auto; display: inline-flex; align-items: center; gap: 4px; }
.service-card:hover .service-link { color: var(--secondary-dark); gap: 8px; }

/* --- WHY CHOOSE US --- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.why-visual { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.why-visual img { width: 100%; height: 450px; object-fit: cover; }
.why-overlay { position: absolute; bottom: 0; left: 0; right: 0; padding: 24px; background: linear-gradient(transparent, rgba(27,42,74,.8)); }
.why-overlay-stat { color: #fff; font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; }
.why-overlay-stat span { font-size: 2.2rem; font-weight: 900; color: var(--secondary-light); display: block; }
.section-dark .section-tag { color: var(--secondary-light); }
.section-dark .section-tag::before { background: var(--secondary-light); }
.section-dark .section-title { color: #fff; }
.why-list { display: flex; flex-direction: column; gap: 20px; margin-top: 24px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.why-check { width: 28px; height: 28px; background: linear-gradient(135deg, var(--success), #4ade80); border-radius: 50%; color: #fff; font-weight: 800; font-size: .8rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.why-item h4 { font-size: .95rem; color: #fff; margin-bottom: 3px; }
.why-item p { font-size: .85rem; color: rgba(255,255,255,.6); }

/* --- MEGA DROPDOWN MENU --- */
.dropdown-mega { min-width: 720px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; padding: 0; }
.mega-col { padding: 16px; border-right: 1px solid var(--border-light); }
.mega-col:last-child { border-right: none; }
.mega-col-title { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--secondary); padding: 8px 12px; margin-bottom: 4px; }
.dropdown-mega .dropdown-item { padding: 8px 12px; }
.dropdown-mega .dropdown-item strong { font-size: .82rem; }
.dropdown-mega .dropdown-item small { font-size: .72rem; }

/* --- PRODUCTS --- */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-img { position: relative; overflow: hidden; height: 220px; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .product-img img { transform: scale(1.08); }
.product-badge { position: absolute; top: 12px; left: 12px; background: var(--secondary); color: #fff; font-size: .7rem; font-weight: 700; padding: 5px 12px; border-radius: 20px; text-transform: uppercase; letter-spacing: .5px; }
.product-badge.accent { background: var(--accent); }
.product-body { padding: 20px; }
.product-body h3 { font-family: var(--font-heading); font-weight: 700; font-size: 1rem; color: var(--primary); margin-bottom: 8px; }
.product-body p { font-size: .85rem; color: var(--text-light); line-height: 1.5; margin-bottom: 14px; }
.product-link { font-size: .85rem; font-weight: 600; color: var(--secondary); }

/* --- PRODUCT CATEGORIES GRID (Homepage 15 products) --- */
.products-categories { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-cat-card { position: relative; height: 260px; border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; padding: 0; text-decoration: none; transition: var(--transition); border: 1px solid var(--border-light); }
.product-cat-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); border-color: var(--secondary); }
.pcc-bg-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1); z-index: 0; }
.product-cat-card:hover .pcc-bg-img { transform: scale(1.1); }
.pcc-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 0%, rgba(27,42,74,0.1) 40%, rgba(27,42,74,0.85) 100%); z-index: 1; transition: var(--transition); }
.product-cat-card:hover .pcc-overlay { background: linear-gradient(180deg, transparent 0%, rgba(200,150,62,0.3) 40%, rgba(27,42,74,0.95) 100%); }
.pcc-content { position: relative; z-index: 2; padding: 24px; color: #ffffff; transform: translateY(16px); transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.product-cat-card:hover .pcc-content { transform: translateY(0); }
.pcc-content h3 { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 800; color: #ffffff; margin-bottom: 6px; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
.pcc-content p { font-size: 0.85rem; color: rgba(255,255,255,0.85); opacity: 0; transition: opacity 0.4s ease; text-shadow: 0 1px 2px rgba(0,0,0,0.6); white-space: normal; line-height: 1.4; margin-bottom: 0; }
.product-cat-card:hover .pcc-content p { opacity: 1; }
.pcc-arrow { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; background: rgba(255,255,255,0.15); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; z-index: 2; opacity: 0; transform: rotate(-45deg) scale(0.8); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); border: 1px solid rgba(255,255,255,0.3); }
.product-cat-card:hover .pcc-arrow { opacity: 1; transform: rotate(0) scale(1); background: var(--secondary); border-color: var(--secondary); box-shadow: 0 4px 16px rgba(200,150,62,0.4); }

/* --- MOBILE SUB-LINKS --- */
.mobile-sub-links { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 0 8px 12px; }
.mobile-sub-links a { display: inline-flex; align-items: center; gap: 4px; padding: 6px 12px; font-size: .78rem; background: var(--bg-alt); border-radius: 20px; color: var(--text-light); transition: var(--transition); border: 1px solid var(--border-light); }
.mobile-sub-links a:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }

/* --- PROCESS --- */
.process-timeline { display: flex; gap: 0; position: relative; }
.process-timeline::before { content: ''; position: absolute; top: 24px; left: 10%; right: 10%; height: 3px; background: linear-gradient(90deg, var(--secondary), var(--accent)); border-radius: 2px; }
.process-step { flex: 1; text-align: center; position: relative; padding-top: 60px; }
.step-num { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 36px; height: 36px; background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); border-radius: 50%; color: #fff; font-family: var(--font-heading); font-weight: 800; font-size: .9rem; display: flex; align-items: center; justify-content: center; z-index: 1; box-shadow: 0 4px 16px rgba(200,150,62,.3); }
.process-step h4 { font-family: var(--font-heading); font-weight: 700; font-size: .95rem; color: var(--primary); margin-bottom: 4px; }
.process-step p { font-size: .8rem; color: var(--text-muted); }

/* --- CTA SECTION --- */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -50%; right: -20%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(200,150,62,.15), transparent 70%); border-radius: 50%; }
.cta-content { text-align: center; position: relative; z-index: 1; color: #fff; max-width: 600px; margin: 0 auto; }
.cta-content h2 { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 12px; }
.cta-content p { color: rgba(255,255,255,.7); margin-bottom: 28px; }
.cta-form { display: flex; gap: 10px; max-width: 500px; margin: 0 auto 20px; flex-wrap: wrap; }
.cta-form input, .cta-form select { flex: 1; min-width: 140px; padding: 14px 18px; border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius-sm); background: rgba(255,255,255,.1); color: #fff; font-size: .9rem; backdrop-filter: blur(10px); }
.cta-form input::placeholder { color: rgba(255,255,255,.5); }
.cta-form select { color: rgba(255,255,255,.5); }
.cta-form select option { color: var(--text); background: var(--surface); }
.cta-badges { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; }
.cta-badge { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: rgba(255,255,255,.6); }

/* --- ABOUT --- */
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; align-items: center; margin-bottom: 60px; }
.about-img { width: 100%; height: 380px; object-fit: cover; border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.about-content h3 { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.about-content p { color: var(--text-light); line-height: 1.8; margin-bottom: 24px; }
.about-values { display: flex; flex-direction: column; gap: 16px; }
.value-item { display: flex; gap: 14px; align-items: flex-start; }
.value-icon { font-size: 1.6rem; flex-shrink: 0; }
.value-item strong { display: block; font-size: .95rem; color: var(--primary); margin-bottom: 2px; }
.value-item p { font-size: .85rem; color: var(--text-light); margin: 0; }
.stats-counter { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { text-align: center; padding: 32px 20px; background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border-light); transition: var(--transition); }
.stat-card:hover { border-color: var(--secondary); box-shadow: var(--shadow-gold); transform: translateY(-4px); }
.stat-number { font-family: var(--font-heading); font-size: 2.4rem; font-weight: 900; color: var(--secondary); }
.stat-text { font-size: .85rem; color: var(--text-muted); margin-top: 4px; }

/* --- PORTFOLIO --- */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.portfolio-card { border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); border: 1px solid var(--border-light); transition: var(--transition); }
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.portfolio-img { position: relative; overflow: hidden; height: 240px; }
.portfolio-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.portfolio-card:hover .portfolio-img img { transform: scale(1.08); }
.portfolio-overlay { position: absolute; inset: 0; background: rgba(27,42,74,.6); display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition); }
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay span { color: #fff; font-weight: 600; font-size: .9rem; padding: 10px 24px; border: 2px solid #fff; border-radius: var(--radius-sm); }
.portfolio-info { padding: 20px; }
.portfolio-cat { font-size: .75rem; font-weight: 700; color: var(--secondary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; display: block; }
.portfolio-info h3 { font-family: var(--font-heading); font-weight: 700; font-size: 1rem; color: var(--primary); margin-bottom: 6px; }
.portfolio-info p { font-size: .85rem; color: var(--text-light); }

/* --- CLIENT LOGOS --- */
.clients-section { padding: 60px 0; background: var(--bg-alt); overflow: hidden; }
.clients-title { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700; color: var(--text-muted); text-align: center; margin-bottom: 28px; }
.marquee { overflow: hidden; position: relative; }
.marquee::before, .marquee::after { content: ''; position: absolute; top: 0; width: 100px; height: 100%; z-index: 2; }
.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg-alt), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg-alt), transparent); }
.marquee-track { display: flex; gap: 40px; animation: marquee 25s linear infinite; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.client-logo { flex-shrink: 0; padding: 16px 28px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border-light); font-size: .85rem; font-weight: 600; color: var(--text-muted); display: flex; align-items: center; gap: 8px; white-space: nowrap; }

/* --- TESTIMONIALS --- */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: var(--surface); border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--border-light); transition: var(--transition); }
.testimonial-card:hover { box-shadow: var(--shadow-md); border-color: var(--secondary); }
.testimonial-quote { font-size: 2.4rem; color: var(--secondary); line-height: 1; margin-bottom: 12px; }
.testimonial-card p { font-size: .92rem; color: var(--text-light); line-height: 1.7; font-style: italic; margin-bottom: 20px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: .85rem; flex-shrink: 0; }
.testimonial-author strong { display: block; font-size: .9rem; color: var(--primary); }
.testimonial-author span { font-size: .78rem; color: var(--text-muted); }

/* --- BLOG --- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.blog-img { height: 200px; overflow: hidden; }
.blog-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.blog-card:hover .blog-img img { transform: scale(1.05); }
.blog-body { padding: 20px; }
.blog-cat { font-size: .72rem; font-weight: 700; color: var(--secondary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.blog-body h3 { font-size: .95rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.4; }
.blog-body h3 a { transition: var(--transition); }
.blog-body h3 a:hover { color: var(--secondary); }
.blog-meta { font-size: .78rem; color: var(--text-muted); }

/* --- FAQ --- */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border-light); border-radius: var(--radius-md); margin-bottom: 10px; overflow: hidden; background: var(--surface); transition: var(--transition); }
.faq-item:hover { border-color: var(--secondary); }
.faq-question { width: 100%; padding: 18px 24px; display: flex; justify-content: space-between; align-items: center; font-size: .95rem; font-weight: 600; color: var(--primary); text-align: left; transition: var(--transition); }
.faq-toggle { font-size: 1.4rem; color: var(--secondary); font-weight: 300; transition: var(--transition); }
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 24px 18px; font-size: .9rem; color: var(--text-light); line-height: 1.7; }

/* --- CONTACT --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon { font-size: 1.6rem; flex-shrink: 0; margin-top: 2px; }
.contact-item h4 { font-size: .95rem; color: var(--primary); margin-bottom: 3px; }
.contact-item p { font-size: .88rem; color: var(--text-light); }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-input { padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: .9rem; transition: var(--transition); background: var(--surface); }
.form-input:focus { outline: none; border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(200,150,62,.1); }

/* --- FOOTER --- */
.footer { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: rgba(255,255,255,.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo .logo-icon { width: 38px; height: 38px; font-size: .8rem; overflow: hidden; }
.footer-logo .logo-img { width: 36px; height: 36px; object-fit: contain; }
.footer-logo span { font-family: var(--font-heading); font-weight: 800; font-size: 1rem; color: #fff; }
.footer-about p { font-size: .85rem; line-height: 1.7; margin-bottom: 16px; }
.footer-social { display: flex; gap: 10px; margin-bottom: 12px; }
.footer-social a { width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: .85rem; transition: var(--transition); }
.footer-social a:hover { background: var(--secondary); border-color: var(--secondary); }
.footer-tax { font-size: .75rem; color: rgba(255,255,255,.3); }
.footer-links h4, .footer-contact h4 { font-size: .9rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links a { display: block; font-size: .85rem; padding: 5px 0; transition: var(--transition); }
.footer-links a:hover { color: var(--secondary-light); padding-left: 6px; }
.fc-item { display: flex; gap: 8px; font-size: .85rem; padding: 5px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; display: flex; justify-content: space-between; font-size: .78rem; color: rgba(255,255,255,.4); }

/* --- FLOATING CTA --- */
.floating-cta { position: fixed; bottom: 24px; right: 24px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.float-btn { width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; box-shadow: var(--shadow-md); transition: var(--transition); }
.float-btn:hover { transform: scale(1.1); }
.float-btn.zalo { background: #0068FF; color: #fff; }
.float-btn.phone { background: var(--success); color: #fff; animation: ring 2s ease-in-out infinite; }
@keyframes ring { 0%,100% { transform: rotate(0); } 5%,15% { transform: rotate(15deg); } 10%,20% { transform: rotate(-15deg); } 25% { transform: rotate(0); } }
.float-btn.top { background: var(--surface); color: var(--primary); border: 1px solid var(--border); opacity: 0; pointer-events: none; transition: var(--transition); }
.float-btn.top.visible { opacity: 1; pointer-events: all; }

/* =============================================
   BRAND ICON SYSTEM — Unified SVG Icons
   All icons use currentColor for brand consistency
   ============================================= */
.bi {
  display: inline-block;
  width: 1em; height: 1em;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
.bi-filled { fill: currentColor; stroke: none; }

/* Product category card icons */
.pcc-icon { color: var(--secondary); }
.pcc-icon .bi { width: 24px; height: 24px; }
.product-cat-card:hover .pcc-icon { color: var(--secondary-dark); }

/* Dropdown menu emoji→SVG: inherits .dropdown-icon svg rule */

/* Contact section icons */
.contact-icon { color: var(--secondary); }
.contact-icon .bi { width: 24px; height: 24px; }

/* CTA badge icons */
.cta-badge span { font-size: 1.2rem; line-height: 1; display: inline-flex; }
.cta-badge .bi { color: var(--secondary-light); }

/* About value icons */
.value-icon { color: var(--secondary); }
.value-icon .bi { width: 28px; height: 28px; }

/* Footer contact items */
.fc-item span { color: var(--secondary-light); display: inline-flex; }
.fc-item .bi { width: 16px; height: 16px; margin-top: 2px; }

/* Footer social links */
.footer-social a .bi { width: 16px; height: 16px; }

/* Floating CTA icons */
.float-btn .bi { width: 24px; height: 24px; stroke-width: 2.5; }

/* Announcement badge icon */
.announcement-badge .bi { width: 14px; height: 14px; stroke-width: 2.5; }

/* Header phone icon */
.header-phone .bi,
.phone-icon .bi { width: 16px; height: 16px; }

/* Topbar icons */
.topbar-item .bi,
.topbar-social .bi { width: 14px; height: 14px; }

/* Client logo icons */
.client-logo .bi { width: 20px; height: 20px; color: var(--secondary); }

/* Hero / buttons */
.hero-btn-primary .bi,
.hero-btn-outline .bi { width: 18px; height: 18px; }

/* Why-us section: brand gold checkmarks */
.why-check {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
}

/* Floating phone: brand accent red */
.float-btn.phone { background: var(--accent); animation: ring-accent 2s ease-in-out infinite; }
@keyframes ring-accent { 0%,100% { box-shadow: 0 0 0 0 rgba(212,67,59,.4); } 50% { box-shadow: 0 0 0 12px rgba(212,67,59,0); } }

/* Social proof: brand gold border */
.social-proof { border-left-color: var(--secondary); }

/* About page icon overrides */
.about-badge-icon { color: var(--secondary); font-size: 1.6rem; }
.about-badge-icon .bi { width: 28px; height: 28px; }
.mvv-icon { color: var(--secondary); }
.mvv-icon .bi { width: 32px; height: 32px; }
.equip-icon { color: var(--secondary); }
.equip-icon .bi { width: 28px; height: 28px; }
.cert-icon { color: var(--secondary); }
.cert-icon .bi { width: 28px; height: 28px; }
.tag .bi { width: 14px; height: 14px; color: var(--secondary); }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 500px; margin: 0 auto; }
  .services-grid, .products-grid, .portfolio-grid, .testimonials-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .products-categories { grid-template-columns: repeat(2, 1fr); }
  .dropdown-mega { min-width: 560px; }
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-item:nth-child(2) { border-right: none; }
  .why-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-counter { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav, .header-actions, .topbar { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-title { font-size: 2rem; }
  .hero-buttons { flex-direction: column; }
  .hero-stats { gap: 20px; }
  .section { padding: 60px 0; }
  .section-header { margin-bottom: 40px; }
  .services-grid, .products-grid, .portfolio-grid, .testimonials-grid, .blog-grid { grid-template-columns: 1fr; }
  .products-categories { grid-template-columns: 1fr; }
  .dropdown-mega { display: none; }
  .usp-grid { grid-template-columns: 1fr; }
  .usp-item { border-right: none; border-bottom: 1px solid var(--border-light); }
  .process-timeline { flex-direction: column; gap: 20px; }
  .process-timeline::before { display: none; }
  .process-step { padding-top: 0; padding-left: 56px; text-align: left; }
  .step-num { left: 0; top: 50%; transform: translateY(-50%); }
  .stats-counter { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cta-form { flex-direction: column; }
  .form-row { grid-template-columns: 1fr; }
  .hero-float { display: none; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.7rem; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .stats-counter { grid-template-columns: 1fr; }
}

/* =============================================
   PREMIUM EFFECTS — Conversion-focused
   ============================================= */

/* --- Cursor Glow Effect --- */
.cursor-glow { position: fixed; width: 300px; height: 300px; background: radial-gradient(circle, rgba(200,150,62,.08), transparent 70%); border-radius: 50%; pointer-events: none; z-index: 9999; transform: translate(-50%, -50%); transition: opacity .3s; opacity: 0; }
body:hover .cursor-glow { opacity: 1; }

/* --- Text Shimmer Animation --- */
@keyframes shimmer { 0% { background-position: -200% center; } 100% { background-position: 200% center; } }
.text-shimmer { background: linear-gradient(90deg, var(--secondary), var(--secondary-light), #fff, var(--secondary-light), var(--secondary)); background-size: 200% auto; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; animation: shimmer 4s linear infinite; }

/* --- Card Shine Effect --- */
.service-card::after, .product-card::after, .testimonial-card::after {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,.3) 50%, transparent 60%);
  transform: rotate(45deg) translate(-100%, -100%); transition: transform .8s ease;
  pointer-events: none;
}
.service-card:hover::after, .product-card:hover::after, .testimonial-card:hover::after {
  transform: rotate(45deg) translate(100%, 100%);
}
.product-card { position: relative; overflow: hidden; }
.testimonial-card { position: relative; overflow: hidden; }

/* --- Ink Drop Animation (Printing Theme) --- */
@keyframes ink-drop { 0% { transform: scale(0); opacity: .6; } 100% { transform: scale(4); opacity: 0; } }
.ink-effect { position: relative; overflow: hidden; }
.ink-effect::before { content: ''; position: absolute; width: 100px; height: 100px; background: radial-gradient(circle, var(--secondary), transparent 70%); border-radius: 50%; opacity: 0; pointer-events: none; z-index: 0; }

/* --- Pulse CTA Button --- */
@keyframes cta-pulse { 0% { box-shadow: 0 0 0 0 rgba(200,150,62,.5); } 70% { box-shadow: 0 0 0 20px rgba(200,150,62,0); } 100% { box-shadow: 0 0 0 0 rgba(200,150,62,0); } }
.btn-primary.pulse { animation: cta-pulse 2s infinite; }
.header-cta-btn { animation: cta-pulse 2.5s infinite; }

/* --- Typing Effect --- */
.typing-cursor { display: inline-block; width: 3px; height: 1em; background: var(--secondary); margin-left: 4px; animation: blink-cursor .8s step-end infinite; vertical-align: text-bottom; }
@keyframes blink-cursor { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* --- 3D Tilt Card Effect --- */
.tilt-card { transform-style: preserve-3d; perspective: 1000px; }
.tilt-card:hover { transform: perspective(1000px) rotateX(2deg) rotateY(-2deg); }
.tilt-card .tilt-inner { transform: translateZ(20px); transition: transform .3s; }

/* --- Stagger Reveal --- */
.reveal-stagger .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-stagger .reveal:nth-child(2) { transition-delay: .1s; }
.reveal-stagger .reveal:nth-child(3) { transition-delay: .2s; }
.reveal-stagger .reveal:nth-child(4) { transition-delay: .25s; }
.reveal-stagger .reveal:nth-child(5) { transition-delay: .3s; }
.reveal-stagger .reveal:nth-child(6) { transition-delay: .35s; }

/* --- Social Proof Notification --- */
.social-proof { position: fixed; bottom: 100px; left: 24px; background: var(--surface); border-radius: var(--radius-md); padding: 14px 20px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 14px; z-index: 800; transform: translateX(-120%); transition: transform .5s cubic-bezier(.68,-.55,.27,1.55); max-width: 320px; border-left: 4px solid var(--success); }
.social-proof.show { transform: translateX(0); }
.social-proof-avatar { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .85rem; flex-shrink: 0; }
.social-proof-text { font-size: .82rem; color: var(--text-light); line-height: 1.4; }
.social-proof-text strong { color: var(--primary); display: block; }
.social-proof-text .sp-time { font-size: .72rem; color: var(--text-muted); margin-top: 2px; }
.social-proof-close { position: absolute; top: 6px; right: 8px; font-size: .7rem; color: var(--text-muted); cursor: pointer; padding: 4px; }

/* --- Announcement Bar --- */
.announcement-bar { background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--primary-dark)); color: rgba(255,255,255,.85); padding: 10px 20px; font-size: .82rem; position: relative; overflow: hidden; border-bottom: 1px solid rgba(200,150,62,.2); }
.announcement-bar::before { content: ''; position: absolute; top: 0; left: -100%; width: 200%; height: 100%; background: linear-gradient(90deg, transparent, rgba(200,150,62,.06), transparent); animation: announcement-shine 6s ease infinite; }
@keyframes announcement-shine { 0% { transform: translateX(-50%); } 100% { transform: translateX(50%); } }
.announcement-inner { display: flex; align-items: center; justify-content: center; gap: 14px; max-width: var(--max-width); margin: 0 auto; flex-wrap: wrap; }
.announcement-badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); color: #fff; font-family: var(--font-heading); font-weight: 800; font-size: .68rem; letter-spacing: 1px; border-radius: 4px; text-transform: uppercase; white-space: nowrap; }
.announcement-text { font-weight: 400; }
.announcement-text strong { color: var(--secondary-light); font-weight: 700; }
.announcement-cta { display: inline-flex; align-items: center; gap: 4px; padding: 4px 14px; background: rgba(200,150,62,.15); border: 1px solid rgba(200,150,62,.3); color: var(--secondary-light); font-weight: 600; font-size: .78rem; border-radius: 20px; transition: var(--transition); white-space: nowrap; }
.announcement-cta:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }

/* --- Enhanced Hero --- */
.hero-title .word { display: inline-block; opacity: 0; transform: translateY(40px); animation: word-reveal .6s ease forwards; }
.hero-title .word:nth-child(1) { animation-delay: .3s; }
.hero-title .word:nth-child(2) { animation-delay: .5s; }
.hero-title .word:nth-child(3) { animation-delay: .7s; }
@keyframes word-reveal { to { opacity: 1; transform: translateY(0); } }

/* --- Scroll Progress Bar --- */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: linear-gradient(90deg, var(--secondary), var(--accent)); z-index: 10001; width: 0%; transition: width .1s; }

/* --- Enhanced Service Cards With Gradient Border --- */
.service-card { background: var(--surface); border: 2px solid var(--border-light); }
.service-card:hover { border-color: var(--secondary); }

/* --- Glassmorphism Quote Section --- */
.cta-section { background: linear-gradient(135deg, var(--primary-dark), var(--primary)), url('https://images.unsplash.com/photo-1504711434969-e33886168d6c?w=1200&q=60'); background-size: cover; background-blend-mode: overlay; }

/* --- Animated Gradient Background --- */
@keyframes gradient-shift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
.section-dark { background: linear-gradient(-45deg, #0f1a30, var(--primary), #1a3a5c, var(--primary-dark)); background-size: 400% 400%; animation: gradient-shift 12s ease infinite; }

/* --- Enhanced Product Badge Glow --- */
.product-badge { box-shadow: 0 2px 12px rgba(200,150,62,.4); }
.product-badge.accent { box-shadow: 0 2px 12px rgba(212,67,59,.4); }

/* --- Toast Notification --- */
.toast { position: fixed; top: 20px; right: 20px; background: var(--surface); border-radius: var(--radius-md); padding: 16px 24px; box-shadow: var(--shadow-lg); z-index: 10000; transform: translateX(120%); transition: transform .4s cubic-bezier(.68,-.55,.27,1.55); display: flex; align-items: center; gap: 12px; border-left: 4px solid var(--success); }
.toast.show { transform: translateX(0); }
.toast-icon { font-size: 1.4rem; }
.toast-text { font-size: .88rem; color: var(--text); }
.toast-text strong { display: block; color: var(--primary); }

/* --- Print Pattern Decoration --- */
.print-pattern { position: absolute; width: 200px; height: 200px; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23C8963E' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat; opacity: .5; pointer-events: none; }

/* --- Enhanced Floating CTA with labels --- */
.float-btn.zalo::after, .float-btn.phone::after { content: attr(title); position: absolute; right: 64px; background: var(--surface); color: var(--text); padding: 6px 14px; border-radius: var(--radius-sm); font-size: .78rem; font-weight: 600; box-shadow: var(--shadow-md); white-space: nowrap; opacity: 0; transform: translateX(10px); transition: var(--transition); pointer-events: none; }
.float-btn.zalo:hover::after, .float-btn.phone:hover::after { opacity: 1; transform: translateX(0); }
.float-btn { position: relative; }

/* --- Stat card glow on hover --- */
.stat-card:hover .stat-number { text-shadow: 0 0 20px rgba(200,150,62,.3); }

/* --- Enhanced form focus --- */
.form-input:focus { border-color: var(--secondary); box-shadow: 0 0 0 4px rgba(200,150,62,.1), 0 4px 16px rgba(200,150,62,.08); transform: translateY(-1px); }

/* --- Why item hover --- */
.why-item { padding: 12px 16px; border-radius: var(--radius-sm); transition: var(--transition); }
.why-item:hover { background: rgba(255,255,255,.05); }

/* --- Blog card date ribbon --- */
.blog-img { position: relative; }

/* --- Mobile enhancements --- */
@media (max-width: 768px) {
  .social-proof { bottom: 90px; left: 12px; right: 12px; max-width: none; }
  .announcement-bar { font-size: .72rem; padding: 8px 12px; }
  .announcement-badge { font-size: .6rem; padding: 2px 8px; }
  .announcement-cta { font-size: .7rem; padding: 3px 10px; }
  .announcement-text { display: inline; word-break: break-word; }
  .cursor-glow { display: none; }
  .floating-cta { bottom: 16px; right: 16px; gap: 10px; }
  .float-btn { width: 46px; height: 46px; font-size: 1.1rem; }
  .float-btn.zalo::after, .float-btn.phone::after { display: none; }
  .topbar-hours { display: none; }
}

/* --- Extra small mobile fixes --- */
@media (max-width: 480px) {
  .announcement-inner { flex-direction: column; gap: 6px; text-align: center; }
  .usp-item { padding: 20px 16px; }
  .usp-value { font-size: .95rem; }
  .pcc-content h3 { font-size: .85rem; }
  .pcc-content p { font-size: .72rem; }
  .testimonial-card { padding: 24px 20px; }
  .testimonial-card p { font-size: .85rem; }
  .blog-body { padding: 16px; }
  .blog-body h3 { font-size: .88rem; }
  .contact-item h4 { font-size: .88rem; }
  .contact-item p { font-size: .82rem; }
  .faq-question { padding: 14px 16px; font-size: .88rem; }
  .social-proof { bottom: 80px; left: 8px; right: 8px; font-size: .78rem; padding: 10px 14px; }
}